graphite powder的用法和樣例：
例句
- Graphite is the widest and most quantity materials used in the machine seal parts.
石墨是用焦碳粉和石墨粉或加碳黑做基料，用瀝青為粘結劑，經(jīng)模壓成型在高溫下燒制而成的。 - In the article, the process conditions of wet surface modification of aphanitic graphite are studied.
選用不同的偶聯(lián)劑對隱晶質(zhì)石墨粉進(jìn)行表面化學(xué)改性。
